Bolting-sieve



J. y W. HERR. BoLTNG SIEVE.

PatentedJuly 18,1882,

v UNITED vSTATES PATENT- OFFICE.

JACOB W. HERR, OF BLANOHESTER, OHIO.

nomme-SIEVE.

SPECIFICATION forming part of Letters Patent No. 261,347, dated July 18, 1882;"-

Application filed April 17, 188:2.

To all whom it may concern:

Be it known that I, JACOB W. HERR, of Blanchest`er,in the county of Clinton and State ot' Ohio, have invented certain new and useful Improvements in Bolting-Sieves; and I do' hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanyin gdrawin gs, which form part of this specification.

My invention relates to an improvement in bolting-sieves; and it consists in the combination of a sieve, an operating-rod which is at tached directly thereto, and which is provided with a pin or projection, Yand an internallygrooved pulley through which the rod passes, so that when the pulleyis made to revolve the sieve is given a reciprocatingmovement.

Figure 1 is a plan view of a machine embodying my invention complete. Fig. 2 is a longitudinal vertical section of the same. Fig. 3 is a detached vertical section of the pulley, showing the groove which is made in its inner surface. Fig. 4 is a detached portion of the endwise-moving rod F. Y l

A represents a suitable rectangular frame, which is to be secured directly to the outside of the frame of the chest in whichthe sieve is placed. In this frame are formed suitable bearings, B, in which the operating-pulley D is journaled. This pulley is formed of a number of curved pieces, c,which have the grooves O formed in their inner surfaces, and which pieces, when secured together, form a perfect pulley, which can be operated by a belt, chain, cable, gear, or friction, as may berpreferred Passing through this pulley is the reciprocating rod F, which has a projection, G, extending out from its side, and which projection catches in the curved groove made in the pulley, so th at as the pulley is made to revolve the pressure of the groove upon' the projection will causethe rod to move back and forth through the pulley. Secured to the inner end of this reciprocating rod is the sieve H,which will be placed in a chest or frame, and which may run in grooves orbe suspended upon springs. This sieve is held in a horizontal position in the chest, and serves to prevent the rod F from (No model.)

turning around as -it is moved back and forth through the pulley D. The sieve is secured to the endof the'rod F by means of the projection a, which forms a part of or'is secured to the rod, and which projects over the top of the sieve. Any other means for securing these parts together may bevused, for this forms no special-part of this invention. The frame otl the sieve may be of any desired length or width, and is covered upon its top with a coarse cloth, I. Thelongitudinal parts of the fra-me are connected togetherv by the cross-pieces J, upon which this cloth rests. Runningparallel with the side pieces of the frame are two or more strips, K, about an inch Wide and live-eigh ths of an,inch thick, and which are covered with canvas, metal, or wood, and which serve to form a. space between the lower edges of the cross-pieces and the bolting-cloth L, so as to allow the middlings to pass under the crosspieces and escape at one end.I This sieve is to be slightly elevated at the head, where it receives the chop, so that as the sieve is reciprocated it will gradually work its way down toward the end of the sieve. Upon the edge of the sieve which is farthest away from the reciprocating rod. there is attached a strip, 0, so'as to prevent the chop from being shaken ott' when the sievereaehes the end of its throw. The sieve will be given a movement from two to three inches,as may be required, and it will be moved fast enough to throw the chop back and forth against the strips. The chop will drop on the .sieve at the head, and will move back and forth until it gets to the tail, where the bran will drop oli", while the flour will pass through the cloth. By thus giving the rod a reciprocating movement and attaching the sieve directly to it the crank or eccentric is done away with, and not only can themechanism beattached directly to the chest or frame in which the sieve is placed, but with the sieve operated as here shown as much material can be bolted as upon a reel ofthe same length. Should the sieve be thirty-six inches wide and lifteen' feet long, the cloth necessary to cover it will cost fteen dollars, while the cloth on a reel of the same length will cost three times as much. The cloth used upon the top of the sieve will be canvas, so that noth- IOO ing een get out except through the cloth or 2. The combination of the bolting-soreen oil at the tail, and the sieve will have a cross with the pulley D, composed of :t number of motion instead of an end one. curved pieces, c, which have the curved groove 15 Having thus described my invention, I C formed in them, and rod F, having the proclaimjeetion Gr, substantially as set forth.

1. The combination of :i sieve, ai reeiprocet- In testimony whereof I aftix my signature in ing rod which is attached directly thereto and l presence of two witnesses. provided with a projection and n. grooved pul- Y ley through which the rod passeso that when JACOB W HERR' the pulley is made to revolve the sieve will be reeiprooated with the rod, substantially as shown.

Wi bnesses J ouN BURTON, ELisHA SPENCER. 

